Modeling Conservation of Matter

How many of each type of atom are in the formula NH₃?

• 1 nitrogen, 3 hydrogen

• 3 nitrogen, 3 hydrogen

• 1 neon, 3 hydrogen

• 1 nitrogen, 3 helium

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NGSS.MS-PS1-1

Chemical Reaction

• The energy that is stored in all compounds and potentially released in chemical reactions.

• To maintain at a constant overall total.

• The smallest particle of an element that maintains the chemical identity of that element.

• The process by which one or more substances change to produce one or more different substances.

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NGSS.MS-PS1-5

NGSS.MS-PS1-2

To maintain at a constant overall total.

• Covalent bond

• Chemical reaction

• Conserve

• Atom

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NGSS.MS-PS1-5

The smallest particle of an element that maintains the chemical identity of that element.

• Conserve

• Chemical Energy

• Chemical Reaction

• Atom

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NGSS.MS-PS1-5

Matter cannot be created or destroyed describes which of the following?

• Law of attraction

• Law of superposition

• Law of conservation of energy

• Law of conservation of matter

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NGSS.MS-PS1-5

The energy that is stored in all compounds and potentially released in chemical reactions.

• Covalent bond

• Chemical energy

• Chemical reaction

• Atom

Tags

NGSS.MS-PS3-2

How many molecules are represented in the formula 3CO₂?

• 3 carbon, 2 oxygen

• 6 carbon dioxide

• 3 carbon dioxide

• 3 carbon, 6 oxygen

Tags

NGSS.MS-PS1-1

How many of each type of atom are in 4NO₂?

• 4 nitrogen, 2 oxygen

• 4 nitrogen, 6 oxygen

• 4 nitrogen, 8 oxygen

• 8 nobelium

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NGSS.MS-PS1-1

A strong chemical bond that is formed when atoms share pairs of electrons.

• Chemical energy

• Chemical reaction

• Covalent bond

• Atom

Tags

NGSS.HS-PS1-1

The number and type of atoms of reactants is equal to the number and type of atoms of products describes which of the following?

• Balanced chemical equation

• Law of conservation of energy

• Equal mass equation

• Unbalanced chemical equation

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NGSS.MS-PS1-5